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2026-03-20 - 17:37

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, slot #8

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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  Congatec
Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of all highest latencies:
System rackeslot8s.osadl.org (updated Fri Mar 20, 2026 12:43:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18749499920330,2029cyclictest22340002sleep311:20:023
18749499919750,1971cyclictest19024852sleep307:29:563
18749499919020,1898cyclictest22106512sleep311:05:023
18749499917650,1760cyclictest2085781-21sleep09:45:003
1874949994037,1cyclictest0-21swapper/309:24:023
187494999191,14cyclictest2124974-21turbostat10:10:003
19033412180,4sleep2421rcuc/207:30:162
187494999171,12cyclictest1966274-21turbostat08:20:003
20536762163,9sleep02053203-21gnome-shell09:24:030
187494999166,7cyclictest22188652sleep311:10:153
187494999165,7cyclictest22262362sleep311:15:123
1874949991613,1cyclictest0-21swapper/308:50:013
1874949991613,1cyclictest0-21swapper/308:27:043
187494999161,12cyclictest2342392-21taskset12:29:083
187494999161,12cyclictest2295968-21taskset11:59:573
187494999161,12cyclictest2195010-21turbostat10:55:003
187494999161,11cyclictest2311091-21taskset12:08:223
187494999161,11cyclictest2014183-21taskset08:55:183
19461662150,7sleep11946196-21ntpq08:00:231
187494999155,7cyclictest2248817-21taskset11:28:313
187494999154,7cyclictest22025822sleep311:00:013
1874949991513,1cyclictest0-21swapper/309:08:323
1874949991512,1cyclictest0-21swapper/312:34:493
1874949991512,1cyclictest0-21swapper/312:22:083
1874949991512,1cyclictest0-21swapper/310:39:343
1874949991512,1cyclictest0-21swapper/309:51:483
1874949991512,1cyclictest0-21swapper/309:16:513
1874949991512,1cyclictest0-21swapper/309:14:373
1874949991512,1cyclictest0-21swapper/308:00:003
1874949991512,1cyclictest0-21swapper/307:20:033
187494999151,11cyclictest2271640-21taskset11:41:433
187494999151,11cyclictest2255993-21taskset11:31:413
187494999151,11cyclictest2133923-21taskset10:15:163
187494999151,11cyclictest2010142-21taskset08:50:243
187494999151,11cyclictest1912782-21taskset07:35:173
187494999151,10cyclictest2302720-21taskset12:01:403
187494999151,10cyclictest1902795-21taskset07:30:133
18748142150,3sleep30-21swapper/307:09:573
18748142150,3sleep30-21swapper/307:09:563
7461140,7gdbus2053583-21evolution-addre09:24:022
20940002141,6sleep22094113-21/usr/sbin/munin09:50:132
187494999144,7cyclictest21631232sleep310:32:423
187494999141,9cyclictest20626452sleep309:30:123
187494999141,9cyclictest19282902sleep307:50:103
187494999141,5cyclictest0-21swapper/310:47:333
1874949991411,1cyclictest0-21swapper/312:35:073
1874949991411,1cyclictest0-21swapper/312:10:133
1874949991411,1cyclictest0-21swapper/310:20:163
1874949991411,1cyclictest0-21swapper/310:10:193
1874949991411,1cyclictest0-21swapper/309:55:403
187494999141,10cyclictest2326189-21taskset12:17:003
187494999141,10cyclictest2202913-21taskset11:00:033
187494999141,10cyclictest2178038-21taskset10:40:393
187494999141,10cyclictest2076069-21taskset09:35:253
187494999141,10cyclictest1997839-21taskset08:40:503
187494999141,10cyclictest1991668-21taskset08:38:343
187494999141,10cyclictest1985071-21taskset08:31:033
187494999141,10cyclictest1959016-21taskset08:10:233
187494999141,10cyclictest1953134-21taskset08:05:493
187494999141,10cyclictest1920779-21taskset07:40:233
187494999141,10cyclictest1889394-21taskset07:15:413
187494999141,10cyclictest1889394-21taskset07:15:403
187494999140,11cyclictest2287063-21taskset11:51:173
187494999140,11cyclictest2280521-21taskset11:49:583
187494999140,10cyclictest2154667-21taskset10:25:343
23016792131,9sleep02301723-21ntpq12:00:230
22403872130,4sleep22240393-21ssh11:21:342
19559312131,3sleep11956833-21kthreadcore08:10:181
187494999134,7cyclictest1946881-21taskset08:02:283
187494999131,9cyclictest2109579-21taskset10:00:073
187494999131,9cyclictest2092490-21taskset09:46:393
187494999131,9cyclictest2022610-21taskset09:00:203
187494999131,9cyclictest1921871-21taskset07:45:043
187494999131,9cyclictest1880891-21taskset07:10:283
187494999131,9cyclictest1880891-21taskset07:10:273
187494999131,10cyclictest2264055-21taskset11:37:223
187494999131,10cyclictest2061502-21taskset09:27:393
187494999130,10cyclictest1969409-21taskset08:20:183
18739802131,8sleep01874057-21ps07:05:250
18739802131,8sleep01874057-21ps07:05:240
6471120,5low-memory-moni2053304-21gst-plugin-scan09:24:021
22256472121,8sleep02029999-21diskmemload11:14:180
22127242120,2sleep22212555-21ssh11:05:162
21088902120,2sleep22108896-21ssh09:58:512
20112242121,7sleep12011221-21apt-get08:55:131
23509712111,7sleep20-21swapper/212:35:142
21271192110,3sleep22128934-21kthreadcore10:10:182
21070502111,5sleep02107135-21ntpq09:55:210
20765942111,7sleep02029999-21diskmemload09:36:030
18688282111,5sleep11868825-21apt-get07:05:141
18688282111,5sleep11868825-21apt-get07:05:131
23112432101,6sleep02311248-21sh12:08:480
22798722100,3sleep12279876-21ssh11:48:001
22007972100,7sleep02200934-21/usr/sbin/munin10:55:240
21555042101,7sleep22029999-21diskmemload10:28:152
21540572100,7sleep12154090-21ntp_states10:25:211
21116872100,7sleep12113556-21tr10:00:181
20946672102,5sleep12095508-21kthreadcore09:50:161
20863742102,5sleep12086537-21cat09:45:141
20601362101,5sleep12060177-21ntpq09:25:221
20264152101,6sleep12028369-21cut09:05:191
19729462101,5sleep11973102-21diskstats08:25:141
19270422100,7sleep01927084-21sed07:45:230
2342373290,7sleep02029999-21diskmemload12:29:070
2342208290,6sleep12029999-21diskmemload12:28:391
2313246290,6sleep02314277-21grep12:10:160
2278387292,4sleep22278433-21ntpq11:45:212
2267599291,5sleep02269465-21kthreadcore11:40:160
2264307290,6sleep12264313-21ssh11:38:101
2254987290,5sleep12255033-21ntpq11:30:231
2249624291,4sleep22249661-21apt-get11:30:122
2233718290,6sleep12233755-21munin-run11:20:001
2232274290,5sleep02232280-21ssh11:15:420
2187213290,6sleep22187217-21ssh10:49:572
2172000292,4sleep22172034-21apt-get10:40:112
2060179291,4sleep22060221-21ntpq09:25:232
2023651290,5sleep22023842-21date09:05:012
1991785291,4sleep01991858-21munin-run08:40:000
1990682290,6sleep11990822-21ntpq08:35:211
1982092290,6sleep11984081-21cut08:30:181
1965358291,5sleep11965395-21ntpq08:15:231
1920746290,6sleep21920763-21ntp_states07:40:232
1902489290,6sleep21902528-21idleruntime-cro07:30:002
1892396290,6sleep11894323-21grep07:20:171
1883654291,4sleep11883651-21apt-get07:15:111
1883654291,4sleep11883651-21apt-get07:15:111
1873892290,4sleep21873935-21ntpq07:05:222
1873892290,4sleep21873935-21ntpq07:05:222
2356264281,4sleep02356354-21awk12:35:230
2349512281,4sleep02349521-21ssh12:32:100
2340653281,4sleep22340687-21ntpq12:25:242
2319726280,4sleep12319728-21ssh12:15:111
2319195281,4sleep12319201-21ssh12:14:231
2286222280,4sleep12286264-21ntpq11:50:241
2280909280,4sleep02281066-21df_inode11:50:160
2278491281,4sleep02278528-21ntpq11:45:220
2265289281,3sleep22265293-21apt-get11:40:102
2264513280,5sleep02029999-21diskmemload11:38:450
2247175280,4sleep12247224-21ntpq11:25:211
2234060281,3sleep12234095-21apt-get11:20:131
2224637281,4sleep12224641-21ssh11:11:101
2202970281,4sleep22203125-21df_inode11:00:112
2200673280,4sleep22200708-21ntpq10:55:232
2189033280,6sleep22190409-21kthreadcore10:50:172
2186500280,4sleep02029999-21diskmemload10:47:510
2163306280,5sleep22054301-21top10:33:132
2156408280,4sleep12156445-21apt-get10:30:111
2148697280,5sleep02148856-21diskstats10:25:120
2133484280,5sleep22133921-21cut10:15:162
2124946280,5sleep12125125-21sed10:10:021
2067963281,4sleep02068004-21ntpq09:30:210
2030309281,4sleep02030350-21ssh09:10:110
2003623280,4sleep02003665-21ntpq08:45:210
1966565281,3sleep11966562-21apt-get08:20:121
1953743280,2sleep21953538-21appstreamcli08:10:032
1949308280,5sleep21951202-21kthreadcore08:05:172
1939846280,4sleep01939969-21python307:55:240
1915193280,2sleep00-21swapper/007:40:020
1908824280,5sleep11908876-21munin-run07:35:001
1899255280,5sleep11901258-21cut07:25:181
1896437281,4sleep01896588-21df_inode07:25:130
2319014271,2sleep20-21swapper/212:13:522
2304177271,3sleep22304172-21apt-get12:05:092
2303743270,1sleep20-21swapper/212:04:462
2249666270,4sleep02249817-21df_inode11:30:140
2243961271,3sleep22245804-21kthreadcore11:25:182
2231622270,4sleep22231677-21ssh11:15:242
2209729270,1sleep1171rcu_preempt11:02:591
2202931270,3sleep02202966-21apt-get11:00:090
2202157270,5sleep12202161-21ssh10:58:511
2186435270,5sleep12186437-21ssh10:47:401
2173857270,4sleep02175659-21ssh10:40:160
2171671271,3sleep00-21swapper/010:40:000
2169530270,4sleep22169586-21ntpq10:35:212
2158984270,4sleep02160842-21tr10:30:180
2140942271,2sleep10-21swapper/110:20:111
2134711270,4sleep02136471-21kthreadcore10:15:170
2132202270,4sleep02029999-21diskmemload10:13:250
2126284271,3sleep12127115-21kthreadcore10:10:171
2118990270,4sleep22120587-21kthreadcore10:05:212
2117159270,4sleep21-21systemd10:05:002
2114984270,4sleep02115025-21ntpq10:00:210
2084572270,5sleep12054301-21top09:41:301
2062796270,4sleep12062880-21cut09:30:141
2044704270,1sleep00-21swapper/009:18:190
2038375270,4sleep22039366-21irqstats09:15:152
2025355270,4sleep02026414-21cat09:05:180
2020425271,3sleep12022418-21kthreadcore09:00:191
2017623270,4sleep02017774-21df_inode09:00:130
2005019270,4sleep12005218-21hddtemp_smartct08:50:161
1998891271,3sleep21999882-21irqstats08:45:152
1997253270,4sleep11997300-21ntp_states08:40:211
1993367270,4sleep01994470-21cut08:40:160
1980746270,5sleep01982091-21cut08:30:170
1959891270,1sleep00-21swapper/008:15:010
1947347270,3sleep01947379-21apt-get08:05:110
1941346271,3sleep20-21swapper/208:00:162
1936048271,3sleep11937431-21kthreadcore07:55:171
1933382270,3sleep01933419-21ntpq07:50:190
1927085270,4sleep11927132-21ntp_states07:45:241
1881244270,4sleep21881300-21systemd07:15:012
1881244270,4sleep21881300-21systemd07:15:002
2350822260,3sleep12350970-21df12:35:121
2344461261,2sleep20-21swapper/212:30:162
2343021260,2sleep10-21swapper/112:30:111
2332828261,3sleep22332882-21ntpq12:20:212
2328917260,3sleep12329895-21ssh12:20:161
2327967261,3sleep02328916-21cut12:20:150
2326345260,1sleep22326351-21ssh12:17:282
2309560260,3sleep12309604-21awk12:05:201
2298149261,2sleep10-21swapper/112:00:201
2289784261,2sleep00-21swapper/011:55:160
2288842261,2sleep20-21swapper/211:55:142
2280861261,2sleep22280898-21apt-get11:50:132
2272649260,3sleep12272653-21ssh11:44:431
2257492260,3sleep22257646-21df11:35:132
2248598260,1sleep00-21swapper/011:27:490
2241532260,3sleep02241586-21systemd-run11:25:000
2224642260,1sleep20-21swapper/211:11:102
2211711260,4sleep12212223-21kthreadcore11:05:161
2210709261,2sleep00-21swapper/011:05:110
2164232260,2sleep10-21swapper/110:35:121
2142380261,2sleep20-21swapper/210:20:172
2139861260,1sleep12139867-21ssh10:17:551
2103251261,2sleep12104441-21kthreadcore09:55:171
2100032260,1sleep00-21swapper/009:50:500
2091719261,2sleep00-21swapper/009:45:250
2085171260,1sleep00-21swapper/009:43:170
2070474261,2sleep20-21swapper/209:35:122
2070116261,2sleep20-21swapper/209:35:002
2055100261,2sleep00-21swapper/009:25:160
2045094260,1sleep10-21swapper/109:19:281
2036320260,1sleep20-21swapper/209:11:102
2017236260,1sleep20-21swapper/208:59:152
2005219261,3sleep20-21swapper/208:50:162
1990824261,2sleep20-21swapper/208:35:222
1973512260,3sleep01974419-21cut08:25:170
1934114260,1sleep10-21swapper/107:52:211
1920997260,3sleep11921241-21users07:40:261
1916519261,2sleep00-21swapper/007:40:170
1914206260,3sleep11914250-21ntpq07:35:201
1910913261,2sleep20-21swapper/207:35:172
1908412260,1sleep00-21swapper/007:30:260
1896044260,1sleep00-21swapper/007:23:530
1881670261,2sleep00-21swapper/007:15:020
1881670261,2sleep00-21swapper/007:15:020
1880921260,1sleep10-21swapper/107:10:511
1880921260,1sleep10-21swapper/107:10:501
2326266250,1sleep00-21swapper/012:17:150
2295468250,2sleep10-21swapper/111:58:221
2187590250,2sleep10-21swapper/110:50:121
2178026250,3sleep12178030-21ssh10:40:371
2145998250,3sleep02054301-21top10:20:200
2124129250,3sleep00-21swapper/010:07:360
2086087250,2sleep22086093-21ssh09:45:112
2079732250,2sleep22080801-21ssh09:40:192
2070432250,1sleep10-21swapper/109:35:111
2029898250,1sleep20-21swapper/209:08:572
2010920250,3sleep02010942-21munin-run08:55:010
1978788250,1sleep20-21swapper/208:27:022
1967988250,2sleep20-21swapper/208:20:172
1966529250,2sleep00-21swapper/008:20:110
1966001250,1sleep20-21swapper/208:17:002
1954848251,2sleep00-21swapper/008:10:170
1948329250,2sleep10-21swapper/108:05:161
1946838250,3sleep00-21swapper/008:01:550
1934177250,1sleep20-21swapper/207:53:102
1926059250,2sleep21926918-21sed07:45:212
1885078250,3sleep2431ktimers/207:15:162
1885078250,3sleep2431ktimers/207:15:162
2187548240,1sleep00-21swapper/010:50:110
2030351240,2sleep10-21swapper/109:10:121
2011188240,1sleep00-21swapper/008:55:120
1979288240,2sleep20-21swapper/208:30:112
1937432240,1sleep20-21swapper/207:55:192
1896051240,3sleep20-21swapper/207:23:592
1998426230,1sleep10-21swapper/108:45:101
1992065230,1sleep20-21swapper/208:40:062
1874868230,1sleep00-21swapper/007:10:010
1874868230,1sleep00-21swapper/007:10:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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